Bubble base JavaScript by <a href="http://www.websnapr.com/index.php?action=previewbubble">WebSnapr</a>
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<a href="http://wiki.bluga.net/HTML_AJAX/HomePage">HTML_AJAX</a>
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+ PHP tag-cloud code by <a href="http://prism-perfect.net/archive/php-tag-cloud-tutorial/">Jenny Ferenc</a>.
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